Problem 42764. Find the next square number

Given one or more integers n, find the next integer that is a square, for each of them.

Example 1:

n = 1;
out = 4;

Example 2:

n = [5 7 9];
out = [9 9 16];

Solve

Last solution submitted on Mar 05, 2019

Peng Liu on 6 Mar 2016

Similar to Solution 844592, this fails for large x, e.g., x = 1e16, due to floating point errors

Peng Liu on 6 Mar 2016

This solution is numerically more stable than Solution 844592.

Peng Liu on 6 Mar 2016

This solution fails for large x > 1e15 due to floating point errors (e.g., 1e16+0.5==1e16).